Abstract
It is suggested that the addition of potassium nitrate to a Ni/SiO2 precursor results, after reduction, in a blocking of nickel particles by a K-containing compound. The potassium film is supposed to act as a molecular sieve: it is permeable to a small molecule (H2) and inhibits the access of large molecules to the nickel.
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References
W.D. Mross, Catal. Rev. Sci. Eng. 25 (1983) 591.
H. Praliaud, M. Primet and G.A. Martin, Appl. Surf. Sci. 17 (1983) 107.
H. Praliaud, J.A. Dalmon, C. Mirodatos and G.A. Martin, J. Catal. 97 (1986) 344.
V. Pitchon, P. Gallezot, C. Nicot and H. Praliaud, J. Appl. Catal. 47 (1989) 357.
H. Praliaud, B. Tardy, J.C. Bertolini and G.A. Martin, in:Structure and Reactivity of Surfaces, eds. C. Morterra et al.) (Eisevier, Amsterdam, 1989) p. 749.
H. Praliaud, M. Primet and G.A. Martin, Bull. Soc. Chim. France 5 (1986) 719.
P. Moral, H. Praliaud and G.A. Martin, React. Kinet. Catal. Lett. 34 (1987) 1.
H. Praliaud et al., to be published.
J.A. Carter, J.A. Cusumano and J.H. Sinfelt, J. Phys. Chem. 70 (1966) 2257.
C.F. Ng and G.A. Martin, J. Catal. 54 (1978) 384.
G.A. Martin and B. Imelik, Surf. Sci. 42 (1974) 157.
D.W. Breck, in:Zeolite Molecular Sieve, Structure, Chemistry and Use (Wiley, New-York, 1974) p. 636.
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Martin, G.A., Praliaud, H. Alkali-induced sieving effect in Ni on silica catalysts. Catal Lett 9, 151–156 (1991). https://doi.org/10.1007/BF00769094
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DOI: https://doi.org/10.1007/BF00769094